To save you time, here's the part relevant to Game of Thrones from this week's Spoiler Room on Entertainment Weekly:

Well, everything is being kept tightly under wraps — seriously, most of the photos that have been released are actually just from the premiere, so don’t make assumptions about the whole season based on those alone. But I will say that Dany’s journey to Dragonstone won’t be easy given that Euron is out there looking for her, and you can expect at least one major character meet-up in the first hour.